Charles w



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N0.576,982. w Patente'dPeb. 9, 1,897.

UNiTnD STATES PATENT OFFICE.

CHARLES IV. LONG, OF MIAMISBURGQOHIO.

TOP.

SPECIFICATION forming part of Letters Patent No. 576,982, dated February9, 1897.

Application led February 12, 1896. Serial No. 579,052. (No model.)

To (all whom, it 11m/y concer/L.-

Be it known that I, CHARLES IV. LONG, a citizen of the United States,residing at Miamisburg, in the county of Montgomery and State of Ohio,have invented certain new and useful Improvements in Tops; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which forma part of this specification.

My invention relates to improvements inv Y toys, with specific referenceto spinning-tops.

rIhe object of the invention is to provide a top that while spinninggives forth a shrill whistling noise as distinct from a humming noise,and which is audible for a considerable distance. Among the advantagespossessed by this specific form of top may be mentioned the changing ofthe ordinary wooden top into a top which gives forth a distinct whistling noise during the entire time it is in motion.

To this end the invention consists of a construction that willbehereinafter described in connection with the accompanying drawings, ofwhich Figure l is an elevation of a top made in accordance with myinvention. Fig. 2 is a section on the line cc and Fig. 3 is a `sectionon the line y fJ.

For the purposes of my invention an ordinary wooden top such as iscommonly used will answer. In the portion a, which is the greatestcross-sectional diameter of the top, I bore an opening d on a horizontalline to the vertical center of the top and of a depth substantially asshown in Figs. 2 and 3.

b designates a second bore of smaller diameter which intersects theinner terminal of the first-named bore a', and which together therewithforms an elbowchamber. The last-named bore b enters the top on the sameside, and at a point slightly below the entrance of the bore d', andextends upward on an incline until it intersects the bore d', as shown.

In order to produce a shrill whistlin g sound,

`mouth of thebore d.

duced by the top while spinning are such that render the position of thechamber important. rents of air formed by the movement of the top towit, an upward and downward and a central or horizontal draft. Thesevarious currents merge into one on ahorizontal plane with the widestportion of the top and at some distance therefrom. If the said chamberwere placedin the widest diameter of the top, it will be readily' seenthat the suction created by the departing current of air at that pointwould prevent the emission of any sound; or if the said chamber wereplaced in the top above the widest diameter owing to the rounded form ofsaid upper portion the downward current of air would leave the top on atangent without affecting the open# ing; but the chamber being below thewidest diameter and entering on an upward incline the upward current ofair comes in direct contact with the opening. The Weight of air withinthe chambers and the weight of the plugs c and c are sufficient tocompensate for the weight of the material removed from the top informing the chambers. the top is evenly balanced and will spin properly.

c designates a cap or plug which closes the Thel outer surface of thiscap lies flush with the surface of the top and conforms to the circularform thereof.

c' is a second plug or cap which closes the mouth of bore b, and whichalso conforms to the outer surface of the top. This cap c has a piececut out of its edge which provides an opening or port e, communicatingwith the elbow-chamber. The arrangement and construction of theopenings, as described above, are essential and weredetermined uponafter long experimental effort to obtain the desired sound.

The top is spun in the usual manner, and during the rapid revolutionsthereof the full force of air passes over the opening e and causes thewhistling sound mentioned.

The advantage of boring the opening b on For example, there are threecur- Therefore 1o chamber a', and a plug cinelosing the chamber b, thelatter plug,` being' provided with an opening ein the edge thereof, asherein shown and for the purposes specified.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES W. LONG.

VtneSSeS:

R. J. MOCARTY, C. W. DUSTIN.

